219879940

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{919}}^1\times {\mathrm{1709}}^1$

素因数の和:2644

約数の個数: 48

約数和(自身を含む): 528595200

約数和(自身を除く): 308715260

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 919, 1709, 1838, 3418, 3676, 4595, 6433, 6836, 8545, 9190, 11963, 12866, 17090, 18380, 23926, 25732, 32165, 34180, 47852, 59815, 64330, 119630, 128660, 239260, 1570571, 3141142, 6282284, 7852855, 10993997, 15705710, 21987994, 31411420, 43975988, 54969985, 109939970, 219879940]

約数ペア:

[(1, 219879940), (2, 109939970), (4, 54969985), (5, 43975988), (7, 31411420), (10, 21987994), (14, 15705710), (20, 10993997), (28, 7852855), (35, 6282284), (70, 3141142), (140, 1570571), (919, 239260), (1709, 128660), (1838, 119630), (3418, 64330), (3676, 59815), (4595, 47852), (6433, 34180), (6836, 32165), (8545, 25732), (9190, 23926), (11963, 18380), (12866, 17090)]